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Jourdain MA, Dupont A, Lautram N, Eyer J. Investigating the functionalization of liposomes with NFL-TBS. 40-63 peptide as a promising drug delivery system. Int J Pharm 2024; 652:123805. [PMID: 38237710 DOI: 10.1016/j.ijpharm.2024.123805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 12/23/2023] [Accepted: 01/11/2024] [Indexed: 02/02/2024]
Abstract
The NFL-peptide was discovered almost 20 years ago, and its targeting properties were assessed alone or in combination with lipid nanocapsules (LNC), magnetic porous silicon nanorods, or gold nanoparticles. Results highlighted a better targeting of cancer cells, in particular glioblastoma and pancreas cancer. Considering the large use of liposomes (LPs) as an hydrophilic drug delivery system, this study explored the possibility to functionalize liposomes with three different sequences of NFL-peptides: native (NFL-peptide), biotinylated (BIOT-NFL) and coupled to fluorescein (FAM-NFL). Dynamic Light Scattering (DLS) complemented by cryo-electron microscopy (CEM) showed a peculiar ultrastructural arrangement between NFL-peptides and liposomes. Based on this architectural interaction, we investigated the biological contribution of these peptides in LPs-DiD glioblastoma cellular uptake. Flow cytometry complemented by confocal microscopy experiments demonstrated a consequent and systematic increased uptake of LPs-DiD into F98 cells when their surface was decorated with NFL-peptides. The intra-cellular distribution of these liposomes via an organelle tracker indicated the presence of LPs-DiD in lysosomes after 4 h. Based on the properties of this NFL-peptide, we showed in this work the crucial role of NFL peptide as an effective and promising actor to potentiate nanoparticles entry in glioblastoma cell lines.
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Affiliation(s)
- M-A Jourdain
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - A Dupont
- Univ Rennes, CNRS, Inserm, BIOSIT-UMS 3480, US_S 018, Rennes, France
| | - N Lautram
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - J Eyer
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France.
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2
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Gazaille C, Bozzato E, Madadian-Bozorg N, Mellinger A, Sicot M, Farooq U, Saulnier P, Eyer J, Préat V, Bertrand N, Bastiat G. Glioblastoma-targeted, local and sustained drug delivery system based on an unconventional lipid nanocapsule hydrogel. BIOMATERIALS ADVANCES 2023; 153:213549. [PMID: 37453243 DOI: 10.1016/j.bioadv.2023.213549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/21/2023] [Accepted: 07/01/2023] [Indexed: 07/18/2023]
Abstract
The objective of this work was to develop an implantable therapeutic hydrogel that will ensure continuity in treatment between surgery and radiochemotherapy for patients with glioblastoma (GBM). A hydrogel of self-associated gemcitabine-loaded lipid nanocapsules (LNC) has shown therapeutic efficacy in vivo in murine GBM resection models. To improve the targeting of GBM cells, the NFL-TBS.40-63 peptide (NFL), was associated with LNC. The LNC-based hydrogels were formulated with the NFL. The peptide was totally and instantaneously adsorbed at the LNC surface, without modifying the hydrogel mechanical properties, and remained adsorbed to the LNC surface after the hydrogel dissolution. In vitro studies on GBM cell lines showed a faster internalization of the LNC and enhanced cytotoxicity, in the presence of NFL. Finally, in vivo studies in the murine GBM resection model proved that the gemcitabine-loaded LNC with adsorbed NFL could target the non-resected GBM cells and significantly delay or even inhibit the apparition of recurrences.
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Affiliation(s)
- Claire Gazaille
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | | | | | - Adélie Mellinger
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - Marion Sicot
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - Umer Farooq
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - Patrick Saulnier
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - Joël Eyer
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | | | - Nicolas Bertrand
- Univ Laval, Faculty of Pharmacy, CHU Quebec Research Center, Québec, QC, Canada
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Griveau A, Alnemeh-Al Ali H, Jourdain M, Dupont A, Eyer J. Characterization and quantification of the interaction between the NFL-TBS.40-63 peptide and lipid nanocapsules. Int J Pharm X 2022; 4:100127. [PMID: 36177093 PMCID: PMC9513630 DOI: 10.1016/j.ijpx.2022.100127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 11/22/2022] Open
Abstract
Several studies previously showed that the NFL-TBS.40-63 peptide (NFL-peptide) is capable to specifically penetrating several glioblastoma cell lines (rat, mouse, human) and inhibiting their cell division in vitro and their tumor development in vivo. When lipid nanocapsules (LNCs) are functionalized with the NFL-peptide, their absorption is targeted in glioblastoma cells both in vitro and in vivo. In the present study, we investigated the molecular architecture of these nanovectors (LNC-NFL) by using several microscopy techniques (transmission electron microscopy, cryo-electron microscopy, and cryo-electron tomography). We also used high-performance liquid chromatography (UPLC) technique to evaluate the interaction between LNCs and peptides. The work shows that the NFL-peptide forms stable long filaments along which the lipid nanocapsules interact strongly to form some sort of nanomolecular bracelets. This new construction composed of the NFL-peptide and lipid nanocapsules shows a better internalization in rat glioblastoma cells (F98 cells) than lipid nanocapsules alone.
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Key Words
- BIOT-NFL, Biotinylated NFL-peptide
- BIOT-NFL-SCR, Biotinylated-NFL-scrambled-peptides
- CEM, Cryo-electron microscopy
- Cryo-ET, Cryo-electron tomography
- FAM-NFL, NFL-peptide coupled to 5-carboxyfluorescein
- FAM-NFL-SCR, 5-carboxyfluorescein-NFL-scrambled-peptides
- GBM, Glioblastoma
- Glioblastoma
- Interaction
- Internalization
- LNC-(DiD), Lipid nanocapsule loaded with DiD
- LNC-(DiD)-BIOT-NFL, Lipid nanocapsule loaded with DiD functionalized with Biotinylated NFL-peptide
- LNC-(DiD)-BIOT-SCR-NFL, Lipid nanocapsule loaded with DiD functionalized with Biotinylated NFL-scrambled-peptide
- LNC-(DiD)-FAM-NFL, Lipid nanocapsule loaded with DiD functionalized with FAM-NFL-peptide
- LNC-(DiD)-FAM-SCR-NFL, Lipid nanocapsule loaded with DiD functionalized with FAM-NFL-scrambled-peptide
- LNCs, Lipid nanocapsules
- Lipid nanocapsules
- NFL-SCR-peptides, NFL-scrambled peptides
- NFL-TBS.40–63 peptide
- NFL-peptide, NFL-TBS.40-63, or Neuro Filament Low subunit Tubulin Binding Site 40-63
- Nanofilaments
- SEC/UPLC, Size-Exclusion Chromatography/Ultra-Performance Liquid Chromatography system
- TEM, Transmission electron microscopy
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Affiliation(s)
- A. Griveau
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | | | - M.A. Jourdain
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - A. Dupont
- Univ Rennes, CNRS, Inserm, BIOSIT-UMS 3480, US_S 018, Rennes, France
| | - J. Eyer
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
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Griveau A, Arib C, Spadavecchia J, Eyer J. Biological activity of gold nanoparticles combined with the NFL-TBS.40-63 peptide, or with other cell penetrating peptides, on rat glioblastoma cells. Int J Pharm X 2022; 4:100129. [PMID: 36164551 PMCID: PMC9508353 DOI: 10.1016/j.ijpx.2022.100129] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/29/2022] Open
Affiliation(s)
- A. Griveau
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - C. Arib
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomatériaux Et D'Agents Thérapeutiques Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - J. Spadavecchia
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomatériaux Et D'Agents Thérapeutiques Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - J. Eyer
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
- Corresponding author.
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Alnemeh-Al Ali H, Griveau A, Artzner F, Dupont A, Lautram N, Jourdain M, Eyer J. Investigation on the self-assembly of the NFL-TBS.40-63 peptide and its interaction with gold nanoparticles as a delivery agent for glioblastoma. Int J Pharm X 2022; 4:100128. [PMID: 36204592 PMCID: PMC9529584 DOI: 10.1016/j.ijpx.2022.100128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 11/19/2022] Open
Affiliation(s)
| | - A. Griveau
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - F. Artzner
- Univ Rennes, CNRS, IPR (Institut de Physique de Rennes), UMR 6251, F-35000 Rennes, France
| | - A. Dupont
- Univ Rennes, CNRS, Inserm, BIOSIT-UMS 3480, US_S 018, Rennes, France
| | - N. Lautram
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - M.A. Jourdain
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - J. Eyer
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
- Corresponding author.
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Arib C, Griveau A, Eyer J, Spadavecchia J. Cell penetrating peptide (CPP) gold(iii) - complex - bioconjugates: from chemical design to interaction with cancer cells for nanomedicine applications. NANOSCALE ADVANCES 2022; 4:3010-3022. [PMID: 36133522 PMCID: PMC9417459 DOI: 10.1039/d2na00096b] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 05/11/2022] [Indexed: 05/14/2023]
Abstract
This study promotes an innovative synthesis of a nanotheragnostic scaffold capable of targeting and destroying pancreatic cancer cells (PDAC) using the Biotinylated NFL-TBS.40-63 peptide (BIOT-NFL), known to enter various glioblastoma cancer cells (GBM) where it specifically destroys their microtubule network. This recently proposed methodology (P7391FR00-50481 LIV) applied to other peptides VIM (Vimentin) and TAT (Twin-Arginine Translocation) (CPP peptides) has many advantages, such as targeted selective internalization and high stability under experimental conditions, modulated by steric and chemical configurations of peptides. The successful interaction of peptides on gold surfaces has been confirmed by UV-visible, dynamic light scattering (DLS), Zeta potential (ZP) and Raman spectroscopy analyses. The cellular internalization in pancreatic ductal adenocarcinoma (PDAC; MIA PACA-2) and GBM (F98) cells was monitored by transmission electron microscopy (TEM) and showed a better cellular internalization in the presence of peptides with gold nanoparticles. In this work, we also evaluated the power of these hybrid peptide-nanoparticles as photothermal agents after cancer cell internalization. These findings envisage novel perspectives for the development of high peptide-nanotheragnostics.
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Affiliation(s)
- Celia Arib
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomatériaux et d'Agents Thérapeutiques Université Paris 13 Sorbonne Paris Cité Bobigny France
| | - Audrey Griveau
- Laboratoire Micro et Nanomedecines Translationnelles, Inserm 1066, CNRS 6021, Institut de Recherche en Ingénierie de la Sante, Bâtiment IBS Institut de Biologie de la Sante, Université, Angers, Centre Hospitalier Universitaire Angers France
| | - Joel Eyer
- Laboratoire Micro et Nanomedecines Translationnelles, Inserm 1066, CNRS 6021, Institut de Recherche en Ingénierie de la Sante, Bâtiment IBS Institut de Biologie de la Sante, Université, Angers, Centre Hospitalier Universitaire Angers France
| | - Jolanda Spadavecchia
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomatériaux et d'Agents Thérapeutiques Université Paris 13 Sorbonne Paris Cité Bobigny France
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7
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Chaix A, Griveau A, Defforge T, Grimal V, Le Borgne B, Gautier G, Eyer J. Cell penetrating peptide decorated magnetic porous silicon nanorods for glioblastoma therapy and imaging. RSC Adv 2022; 12:11708-11714. [PMID: 35432942 PMCID: PMC9008514 DOI: 10.1039/d2ra00508e] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 03/30/2022] [Indexed: 01/19/2023] Open
Abstract
Glioblastoma multiforme (GBM) is the most malignant primary brain tumor of the central nervous system. Despite advances in therapy, it remains largely untreatable, in part due to the low permeability of chemotherapeutic drugs across the blood-brain barrier (BBB) which significantly compromises their effectiveness. To circumvent the lack of drug efficiency, we designed multifunctional nanoparticles based on porous silicon. Herein, we propose an innovative synthesis technique for porous silicon nanorods (pSiNRs) with three-dimensional (3D) shape-controlled nanostructure. In order to achieve an efficient administration and improved treatment against GBM cells, a porous silicon nanoplatform is designed with magnetic guidance, fluorescence tracking and a cell-penetrating peptide (CPP). A NeuroFilament Light (NFL) subunit derived 24 amino acid tubulin binding site peptide called NFL-TBS.40-63 peptide or NFL-peptide was reported to preferentially target human GBM cells compared to healthy cells. Motivated by this approach, we investigated the use of magnetic-pSiNRs covered with superparamagnetic iron oxide nanoparticles (SPIONs) for magnetic guidance, then decorated with the NFL-peptide to facilitate targeting and enhance internalization into human GBM cells. Unexpectedly, under confocal microscope imaging, the internalized multifunctional nanoparticles in GBM cells induce a remarkable exaltation of green fluorescence instead of the red native fluorescence from the dye due to a possible Förster resonance energy transfer (FRET). In addition, we showed that the uptake of NFL-peptide decorated magnetic-pSiNRs was preferential towards human GBM cells. This study presents the fabrication of magnetic-pSiNRs decorated with the NFL-peptide, which act as a remarkable candidate to treat brain tumors. This is supported by in vitro results and confocal imaging.
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Affiliation(s)
- Arnaud Chaix
- GREMAN UMR-CNRS 7347, INSA Centre Val de Loire, Université de Tours Tours France
| | - Audrey Griveau
- MINT, INSERM, CNRS, SFR-ICAT, UNIV Angers 49000 Angers France
| | - Thomas Defforge
- GREMAN UMR-CNRS 7347, INSA Centre Val de Loire, Université de Tours Tours France
| | - Virginie Grimal
- GREMAN UMR-CNRS 7347, INSA Centre Val de Loire, Université de Tours Tours France
| | - Brice Le Borgne
- GREMAN UMR-CNRS 7347, INSA Centre Val de Loire, Université de Tours Tours France
| | - Gaël Gautier
- GREMAN UMR-CNRS 7347, INSA Centre Val de Loire, Université de Tours Tours France
| | - Joël Eyer
- MINT, INSERM, CNRS, SFR-ICAT, UNIV Angers 49000 Angers France
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8
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Li L, Chen J, Ming Y, Li B, Fu R, Duan D, Li Z, Ni R, Wang X, Zhou Y, Zhang L. The Application of Peptides in Glioma: a Novel Tool for Therapy. Curr Pharm Biotechnol 2021; 23:620-633. [PMID: 34182908 DOI: 10.2174/1389201022666210628114042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Glioma is the most aggressive and lethal tumor of the central nervous system. Owing to the cellular heterogeneity, the invasiveness, and blood-brain barrier (BBB), current therapeutic approaches, such as chemotherapy and radiotherapy, are poorly to obtain great anti-tumor efficacy. However, peptides, a novel type of therapeutic agent, displayed excellent ability in the tumor, which becomes a new molecule for glioma treatment. METHOD We review the current knowledge on peptides for the treatment of glioma through a PubMed-based literature search. RESULTS In the treatment of glioma, peptides can be used as (i) decoration on the surface of the delivery system, facilitating the distribution and accumulation of the anti-tumor drug in the target site;(ii) anti-tumor active molecules, inhibiting the growth of glioma and reducing solid tumor volume; (iii) immune-stimulating factor, and activating immune cells in the tumor microenvironment or recruiting immune cells to the tumor for breaking out the immunosuppression by glioma cells. CONCLUSION The application of peptides has revolutionized the treatment of glioma, which is based on targeting, penetrating, anti-tumor activities, and immunostimulatory. Moreover, better outcomes have been discovered in combining different kinds of peptides rather than a single one. Until now, more and more preclinical studies have been developed with multifarious peptides, which show promising results in vitro or vivo with the model of glioma.
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Affiliation(s)
- Li Li
- Department of Pharmacy, Daping Hospital, Army Medical University, Chongqing, China
| | - Jianhong Chen
- Department of Pharmacy, Daping Hospital, Army Medical University, Chongqing, China
| | - Yue Ming
- Department of Pharmacy, Daping Hospital, Army Medical University, Chongqing, China
| | - Bin Li
- Department of Pharmacy, Daping Hospital, Army Medical University, Chongqing, China
| | - Ruoqiu Fu
- Department of Pharmacy, Daping Hospital, Army Medical University, Chongqing, China
| | - Dongyu Duan
- Department of Pharmacy, Daping Hospital, Army Medical University, Chongqing, China
| | - Ziwei Li
- Department of Pharmacy, Daping Hospital, Army Medical University, Chongqing, China
| | - Rui Ni
- Department of Pharmacy, Daping Hospital, Army Medical University, Chongqing, China
| | - Xianfeng Wang
- Department of Pharmacy, Daping Hospital, Army Medical University, Chongqing, China
| | - Yueling Zhou
- Department of Pharmacy, Daping Hospital, Army Medical University, Chongqing, China
| | - Lin Zhang
- Department of Pharmacy, Daping Hospital, Army Medical University, Chongqing, China
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9
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Audrey G, Claire LC, Joel E. Effect of the NFL-TBS.40-63 peptide on canine glioblastoma cells. Int J Pharm 2021; 605:120811. [PMID: 34144141 DOI: 10.1016/j.ijpharm.2021.120811] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/17/2021] [Accepted: 06/12/2021] [Indexed: 12/21/2022]
Abstract
Glioblastomas are the most frequent and aggressive cancer of the nervous system. The standard treatment is composed of neurosurgery followed by radiotherapy and chemotherapy, but the median survival remains very low. The NFL-TBS.40-63 peptide, also known as NFL-peptide, is capable to specifically penetrating all glioblastoma cell lines tested so far (rat, mouse and human), where it alters their microtubule network. Consequently, the peptide inhibits selectively the in vitro cell division of glioblastoma cells and their tumor development in vivo. When lipid nanocapsules are functionalized with the NFL-peptide, their uptake is targeted into glioblastoma cells both in vitro and in vivo. Here, we evaluated the impact of the NFL-peptide on J3T cells derived from a canine spontaneous glioblastoma, and its activity when functionalized to nanocapsules. Both flow cytometry and confocal microscopy experiments indicate that the NFL-peptide interacts with these cells and affects their biology, but it cannot enter in cells. By functionalizing lipid nanoparticles with the NFL-peptide, their uptake is also increased, while the peptide stays outside. This investigation reveals similarities and major differences between these canine cells and other glioblastoma cells, which are important aspects to consider when using this type of drug delivery system or performing pre-clinical studies with this animal model.
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Affiliation(s)
- Griveau Audrey
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France
| | - Lépinoux-Chambaud Claire
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France; GlioCure, F-49000 Angers, France
| | - Eyer Joel
- Univ Angers, Inserm, CNRS, MINT, SFR ICAT, F-49000 Angers, France.
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10
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Characterization of Biological Material Adsorption to the Surface of Nanoparticles without a Prior Separation Step: a Case Study of Glioblastoma-Targeting Peptide and Lipid Nanocapsules. Pharm Res 2021; 38:681-691. [PMID: 33829340 PMCID: PMC8026175 DOI: 10.1007/s11095-021-03034-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 03/23/2021] [Indexed: 11/04/2022]
Abstract
Purpose Current preclinical therapeutic strategies involving nanomedicine require increasingly sophisticated nanosystems and the characterization of the complexity of such nanoassemblies is becoming a major issue. Accurate characterization is often the factor that can accelerate the translational approaches of nanomedicines and their pharmaceutical development to reach the clinic faster. We conducted a case study involving the adsorption of the NFL-TBS.40–63 (NFL) peptide (derived from neurofilaments) to the surface of lipid nanocapsules (LNCs) (a combined nanosystem used to target glioblastoma cells) to develop an analytical approach combining the separation and the quantification in a single step, leading to the characterization of the proportion of free peptide and thus the proportion of peptide adsorbed to the lipid nanocapsule surface. Methods LNC suspensions, NFL peptide solution and LNC/NFL peptide mixtures were characterized using a Size-Exclusion Chromatography method (with a chromatographic apparatus). In addition, this method was compared to centrifugal-filtration devices, currently used in literature for this case study. Results Combining the steps for separation and characterization in one single sequence improved the accuracy and robustness of the data and led to reproducible results. Moreover the data deviation observed for the centrifugal-filtration devices demonstrated the limits for this increasingly used characterization approach, explained by the poor separation quality and highlighting the importance for the method optimization. The high potential of the technique was shown, proving that H-bond and/or electrostatic interactions mediate adsorption of the NFL peptide to the surface of LNCs. Conclusions Used only as a characterization tool, the process using chromatographic apparatus is less time and solvent consuming than classical Size-Exclusion Chromatography columns only used for separation. It could be a promising tool for the scientific community for characterizing the interactions of other combinations of nanosystems and active biological agents. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1007/s11095-021-03034-8.
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11
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Bomont P. The dazzling rise of neurofilaments: Physiological functions and roles as biomarkers. Curr Opin Cell Biol 2021; 68:181-191. [PMID: 33454158 DOI: 10.1016/j.ceb.2020.10.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/13/2020] [Accepted: 10/19/2020] [Indexed: 12/15/2022]
Abstract
In the last two years, neurofilaments (NFs) have become one of the most blazing topics in clinical neuroscience. NFs are major cytoskeletal constituents of neurons, can be detected in body fluids, and have recently emerged as universal biomarkers of neuronal injury and neurological diseases. This review will examine the evolving landscape of NFs, from their specific cellular functions within neurons to their broad clinical value as biomarkers. Particular attention will be given to the dynamic nature of the NF network and its novel roles in microtubule regulation, neurotransmission, and nanomedicine. Building from the initial evidence of causative mutations in NF genes in Charcot-Marie-Tooth diseases, the latest advances at the frontiers of basic and clinical sciences have expanded the scope and relevance of NFs for human health remarkably and have poised to fuel innovation in cell biology and neuroscience.
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Affiliation(s)
- Pascale Bomont
- ERC team, INMG, INSERM U1217, CNRS UMR5310, University of Lyon 1, University of Lyon, Lyon, France.
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12
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Fabian C, Han M, Bjerkvig R, Niclou SP. Novel facets of glioma invasion. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2020; 360:33-64. [PMID: 33962750 DOI: 10.1016/bs.ircmb.2020.08.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Malignant gliomas including Glioblastoma (GBM) are characterized by extensive diffuse tumor cell infiltration throughout the brain, which represents a major challenge in clinical disease management. While surgical resection is beneficial for patient outcome, it is well recognized that tumor cells at the invasive front or beyond stay behind and constitute a major source of tumor recurrence. Invasive glioma cells also represent a difficult therapeutic target since they are localized within normal functional brain areas with an intact blood brain barrier (BBB), thereby excluding most systemic drug treatments. Cell movement is mediated via the actin cytoskeleton where corresponding membrane protrusions play essential roles. This review provides an overview of the various paths of glioma cell invasion and underlines the specific aspects of the brain microenvironment. We highlight recent insight into tumor microtubes, neuro-glioma synapses and tumor metabolism which can regulate collective invasion processes. We also focus on the deregulation of actin cytoskeleton-related components in the context of glioma invasion, a deregulation that may be controlled by genomic alterations in tumor cells as well as by various external factors, including extracellular matrix (ECM) components and non-malignant stromal cells. Finally we critically assess the challenges and opportunities for therapeutically targeting glioma cell invasion.
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Affiliation(s)
- Carina Fabian
- NORLUX Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg; Department of Biomedicine, University of Bergen, Bergen, Norway
| | - Mingzhi Han
- Department of Biomedicine, University of Bergen, Bergen, Norway; Department of Neurosurgery, Qilu Hospital of Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University; Shandong Key Laboratory of Brain Function Remodeling, Jinan, China
| | - Rolf Bjerkvig
- NORLUX Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg; Department of Biomedicine, University of Bergen, Bergen, Norway.
| | - Simone P Niclou
- NORLUX Neuro-Oncology Laboratory, Department of Oncology, Luxembourg Institute of Health, Luxembourg, Luxembourg; Department of Biomedicine, University of Bergen, Bergen, Norway.
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Abstract
Circular RNAs (circRNAs) are covalently circularized RNA moieties that despite being relatively abundant were only recently identified and have only begun to be investigated within the last couple of years. Even though there are many thousands of genes that appear capable of producing circRNAs, and the fact that many circRNAs appear to be highly evolutionarily conserved, the function of all but a few remain to be fully explored. What has been determined, however, is that circRNAs play key regulatory roles in many aspects of biology with focus being given to their function in cancer. Most of the studies to date have found that circRNAs act as master regulator of gene expression most often than not acting to regulate levels though sequestration or "sponging" of other gene expression regulators, particularly miRNAs. They can also function directly modulating transcription, or by interfering with splicing mechanisms. Some circRNAs can also be translated into functional proteins or peptides. A combination of tissue and developmental stage specific expression along with an innate resistance to RNAse activity means that circRNAs show perhaps their greatest potential as novel biomarkers of cancer. In this chapter we consider the current state of knowledge regarding these molecules, their synthesis, function, and association with cancer. We also consider some of the challenges that remain to be overcome to allow this emerging class of RNAs to fulfill their potential in clinical practice.
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Affiliation(s)
- Carla Solé
- Molecular Oncology Group, Biodonostia Research Institute, San Sebastián, Spain
| | - Charles Henderson Lawrie
- Molecular Oncology Group, Biodonostia Research Institute, San Sebastián, Spain; IKERBASQUE, Basque Foundation for Science, Bilbao, Spain; Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom.
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Fressinaud C, Thomas O, Umerska AM, Saulnier P. Lipid Nanoparticles Vectorized with NFL-TBS.40-63 Peptide Target Oligodendrocytes and Promote Neurotrophin-3 Effects After Demyelination In Vitro. Neurochem Res 2020; 45:2732-2748. [PMID: 32910302 DOI: 10.1007/s11064-020-03122-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 08/01/2020] [Accepted: 08/30/2020] [Indexed: 12/13/2022]
Abstract
Promoting remyelination in multiple sclerosis is important to prevent axon degeneration, given the lack of curative treatment. Although some growth factors improve this repair, unspecific delivery to cells and potential side effects limit their therapeutic use. Thus, NFL-TBS.40-63 peptide (NFL)-known to enter specifically myelinating oligodendrocytes (OL)-was used to vectorize 100 nm diameter lipid nanoparticles (LNC), and the ability of NFL-LNC to specifically target OL from newborn rat brain was assessed in vitro. Specific uptake of DiD-labeled NFL-LNC by OL characterized by CNP and myelin basic protein was observed by confocal microscopy, as well as DiD colocalization with NFL and with Rab5-a marker of early endosomes. Unvectorized LNC did not significantly penetrate OL and there was no uptake of NFL-LNC by astrocytes. Canonical maturation of OL which extended compacted myelin-like membranes was observed by transmission electron microscopy in cells grown up to 9 days with NFL-LNC. Endocytosis of NFL-LNC appeared to depend on several pathways, as demonstrated by inhibitors. In addition, vectorized NFL-LNC adsorbed on neurotrophin-3 (NT-3) potentiated the proremyelinating effects of NT-3 after demyelination by lysophosphatidyl choline, allowing noticeably decreasing NT-3 concentration. Our results if they were confirmed in vivo suggest that NFL-vectorized LNC appear safe and could be considered as putative carriers for specific drug delivery to OL in order to increase remyelination.
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Affiliation(s)
- Catherine Fressinaud
- Neurology Department, University Hospital, 4 rue Larrey, 49933, Angers Cedex 9, France. .,MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France.
| | - Olivier Thomas
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France
| | - Anita Monika Umerska
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France
| | - Patrick Saulnier
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Université Bretagne Loire, Angers, France
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15
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Lépinoux-Chambaud C, Eyer J. The NFL-TBS.40–63 peptide targets and kills glioblastoma stem cells derived from human patients and also targets nanocapsules into these cells. Int J Pharm 2019; 566:218-228. [DOI: 10.1016/j.ijpharm.2019.05.060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 05/10/2019] [Accepted: 05/23/2019] [Indexed: 02/08/2023]
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16
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Huo L, Wang B, Zheng M, Zhang Y, Xu J, Yang G, Guan Q. miR-128-3p inhibits glioma cell proliferation and differentiation by targeting NPTX1 through IRS-1/PI3K/AKT signaling pathway. Exp Ther Med 2019; 17:2921-2930. [PMID: 30906475 PMCID: PMC6425241 DOI: 10.3892/etm.2019.7284] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 11/03/2017] [Indexed: 12/23/2022] Open
Abstract
It has been reported that glioma has a higher morbidity and mortality than other types of malignant brain tumor. While glioma has been extensively researched, the exact molecular mechanisms of its genesis and progression have remained to be fully elucidated. In order to explore a novel glioma-associated pathway which may represent a therapeutic target, 61 pairs of tumor tissues and adjacent normal tissues of glioma patients were collected and subjected to reverse-transcription quantitative polymerase chain reaction analysis, indicating that the relative expression of microRNA (miR)-128-3p was significantly decreased in the tumor tissues. However, the expression of neuronal pentraxin 1 (NPTX1) was obviously elevated. Through a bioinformatics analysis using Targetscan and transfection experiments, it was confirmed that NPTX1 was targeted by miR-128-3p. In the U251 human glioma cell line, transfection with miR-128-3p mimics increased the levels of phosphorylated insulin receptor substrate 1 (p-IRS-1), phosphoinositide-3 kinase (PI3K) and p-AKT, as demonstrated by western blot analysis. In addition, the proliferation rate of the cells was notably decreased following transfection with miR-128-3p mimics. Conversely, transfection with miR-128-3p inhibitor significantly increased the levels of p-IRS-1, PI3K and p-AKT, accompanied by an elevated proliferation rate of the cells. Therefore, it was indicated that miR-128-3p could reversely regulate NPTX1 expression. After the expression of NPTX1 was inhibited with specific small interfering RNA, the levels of p-IRS-1, PI3K and p-AKT were obviously decreased, while the expression of miR-128-3p was not significantly changed. Overall, it was concluded that miR-128-3p suppresses glioma through the NPTX1/IRS-1/PI3K/AKT signaling pathway.
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Affiliation(s)
- Leiming Huo
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Bin Wang
- Department of Neurosurgery, The First People's Hospital of Longxi County, Dingxi, Gansu 730050, P.R. China
| | - Maohua Zheng
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Yonghong Zhang
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Jiguang Xu
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Gang Yang
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Quanlin Guan
- Department of Neurosurgery, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
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17
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Carradori D, dos Santos AG, Masquelier J, Paquot A, Saulnier P, Eyer J, Préat V, Muccioli GG, Mingeot-Leclercq MP, des Rieux A. The origin of neural stem cells impacts their interactions with targeted-lipid nanocapsules: Potential role of plasma membrane lipid composition and fluidity. J Control Release 2018; 292:248-255. [DOI: 10.1016/j.jconrel.2018.11.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/01/2018] [Accepted: 11/04/2018] [Indexed: 02/06/2023]
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18
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Hao Z, Hu S, Liu Z, Song W, Zhao Y, Li M. Circular RNAs: Functions and Prospects in Glioma. J Mol Neurosci 2018; 67:72-81. [PMID: 30460608 DOI: 10.1007/s12031-018-1211-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Accepted: 11/08/2018] [Indexed: 12/28/2022]
Abstract
Improving the survival rate of patients with glioma, a malignant tumor of the human brain has become increasingly important. In recent years, the function of circular RNAs (circRNAs) in different diseases and the pathophysiological mechanisms involved have been elucidated. In the pathophysiological mechanism, the primary function of circRNAs is to act as microRNA sponges. An increasing number of studies have found that circRNAs are differentially expressed in gliomas and regulate the occurrence, proliferation, and invasion of glioma and thus may be potential markers for the diagnosis of gliomas. Additionally, some circRNAs have been associated with glioma staging and may be useful in determining prognosis. Based on the stability and high conservation of circRNAs, we believe that circRNAs may have molecular targets that are useful for the treatment of glioma. In this review, we summarize the current research regarding the role of circRNAs in gliomas, discuss the potential value and role of circRNAs in gliomas, and provide new perspectives for future research.
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Affiliation(s)
- Zheng Hao
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi, China
| | - Si Hu
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi, China
| | - Zheng Liu
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi, China
| | - Weixin Song
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi, China
| | - Yeyu Zhao
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi, China
| | - Meihua Li
- Department of Neurosurgery, The First Affiliated Hospital of Nanchang University, No. 17 Yongwaizheng Street, Nanchang, 330006, Jiangxi, China.
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19
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Barreau K, Montero-Menei C, Eyer J. The neurofilament derived-peptide NFL-TBS.40-63 enters in-vitro in human neural stem cells and increases their differentiation. PLoS One 2018; 13:e0201578. [PMID: 30092042 PMCID: PMC6084907 DOI: 10.1371/journal.pone.0201578] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 07/18/2018] [Indexed: 12/13/2022] Open
Abstract
Regenerative medicine is a promising approach to treat neurodegenerative diseases by replacing degenerating cells like neurons or oligodendrocytes. Targeting human neural stem cells directly in the brain is a big challenge in such a strategy. The neurofilament derived NFL-TBS.40-63 peptide has recently been introduced as a novel tool to target neural stem cells. Previous studies showed that this peptide can be internalized by rat neural stem cells in vitro and in vivo, which coincided with lower proliferation and self-renewal capacity and increase of differentiation. In this study, we analyzed the uptake and potential effects of the NFL-TBS.40-63 peptide on human neural stem cells isolated from human fetuses. We showed that the peptide inhibits proliferation and the ability to produce neurospheres in vitro, which is consistent with an increase in cell adhesion and differentiation. These results confirm that the peptide could be a promising molecule to target and manipulate human neural stem cells and thus could serve as a strategic tool for regenerative medicine.
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Affiliation(s)
- Kristell Barreau
- Laboratoire Micro et Nanomédecines Translationnelles, Inserm 1066, CNRS 6021, Institut de Recherche en Ingénierie de la Santé, Bâtiment IBS Institut de Biologie de la Santé, Université Angers, Centre Hospitalier Universitaire, Angers, France
| | - Claudia Montero-Menei
- Centre de Recherche en Cancérologie et Immunologie, INSERM, Université de Nantes, Université Angers, Angers, France
| | - Joël Eyer
- Laboratoire Micro et Nanomédecines Translationnelles, Inserm 1066, CNRS 6021, Institut de Recherche en Ingénierie de la Santé, Bâtiment IBS Institut de Biologie de la Santé, Université Angers, Centre Hospitalier Universitaire, Angers, France
- * E-mail:
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20
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Karim R, Lepeltier E, Esnault L, Pigeon P, Lemaire L, Lépinoux-Chambaud C, Clere N, Jaouen G, Eyer J, Piel G, Passirani C. Enhanced and preferential internalization of lipid nanocapsules into human glioblastoma cells: effect of a surface-functionalizing NFL peptide. NANOSCALE 2018; 10:13485-13501. [PMID: 29972178 DOI: 10.1039/c8nr02132e] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Increasing intracellular drug concentration using nanocarriers can be a potential strategy to improve efficacy against glioblastoma (GBM). Here, the fluorescent-labelled NFL-TBS·40-63 peptide (fluoNFL) concentration on a lipid nanocapsule (LNC) was studied to enhance nanovector internalization into human GBM cells. LNC surface-functionalization with various fluoNFL concentrations was performed by adsorption. LNC size and surface charge altered gradually with increasing peptide concentration, but their complement protein consumption remained low. Desorption of fluoNFL from the LNC surface was found to be slow. Furthermore, it was observed that the rate and extent of LNC internalization in the U87MG human glioblastoma cells were dependent on the surface-functionalizing fluoNFL concentration. In addition, we showed that the uptake of fluoNFL-functionalized LNCs was preferential towards U87MG cells compared to healthy human astrocytes. The fluoNFL-functionalized LNC internalization into the U87MG cells was energy-dependent and occurred possibly by macropinocytosis and clathrin-mediated and caveolin-mediated endocytosis. A new ferrocifen-type molecule (FcTriOH), as a potent anticancer candidate, was then encapsulated in the LNCs and the functionalization improved its in vitro efficacy compared to other tested formulations against U87MG cells. In the preliminary study, on subcutaneous human GBM tumor model in nude mice, a significant reduction of relative tumor volume was observed at one week after the second intravenous injection with FcTriOH-loaded LNCs. These results showed that enhancing NFL peptide concentration on the LNC surface is a promising approach for increased and preferential nanocarrier internalization into human GBM cells, and the FcTriOH-loaded LNCs are a promising therapy approach for GBM.
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Affiliation(s)
- Reatul Karim
- MINT, UNIV Angers, INSERM 1066, CNRS 6021, Angers, France.
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21
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Xie G. Circular RNA hsa-circ-0012129 Promotes Cell Proliferation and Invasion in 30 Cases of Human Glioma and Human Glioma Cell Lines U373, A172, and SHG44, by Targeting MicroRNA-661 (miR-661). Med Sci Monit 2018; 24:2497-2507. [PMID: 29686222 PMCID: PMC5936050 DOI: 10.12659/msm.909229] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Circular RNA (circRNA) is a stable non-coding RNA without 5′-3′ polarity and without a poly-A tail, that contains response elements for microRNAs (miRNAs) such as miR-661. There have previously been few reported studies on the role of circRNAs in glioma. The aim of this study was to investigate the effects of the expression of the circRNA, hsa-circ-0012129, and miR-661 in human glioma tissue and human glioma cell lines. Material/Methods Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect the expression of hsa-circ-0012129 and miR-661 in glioma tissues from 31 patients (WHO grades I–IV), compared with adjacent normal tissue, and in human glioma cell lines, U373, A172, and SHG44, compared with the normal human astrocyte cell line, NHA. The MTT assay, colony formation assay, transwell and wound scratch assays were performed to analyze and compare cell viability, cell migration, and invasion. Results Expression of hsa-circ-0012129 was significantly increased in glioma tissues and cell lines; hsa-circ-0012129 knockdown significantly suppressed the proliferation, migration, and invasion abilities of U373 and SHG44 cells. A dual-luciferase reporter assay showed that hsa-circ-0012129 contained the complementary binding region with miR-661 and that hsa-circ-0012129 expression negatively regulated miR-661. Rescue experiments showed that miR-661 could reverse the effects of hsa-circ-0012129 on cell viability, cell migration and invasion of glioma cells in vitro. Conclusions The findings of this study indicated that, in human glioma cells, the circRNA, hsa-circ-0012129 might act as a natural miR-661 sponge, and that miR-661 could have suppressive effects on the expression of circ-0012129.
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Affiliation(s)
- Gang Xie
- Dapartment of Neurosurgery, The Third Affiliated Hospital of Bengbu Medical College, Suzhou, Anhui, China (mainland)
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22
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Otani Y, Ichikawa T, Kurozumi K, Inoue S, Ishida J, Oka T, Shimizu T, Tomita Y, Hattori Y, Uneda A, Matsumoto Y, Michiue H, Date I. Fibroblast growth factor 13 regulates glioma cell invasion and is important for bevacizumab-induced glioma invasion. Oncogene 2017; 37:777-786. [PMID: 29059154 DOI: 10.1038/onc.2017.373] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 08/22/2017] [Accepted: 08/29/2017] [Indexed: 12/16/2022]
Abstract
Glioblastoma has the poorest prognosis, and is characterized by excessive invasion and angiogenesis. To determine the invasive mechanisms, we previously used two glioma cell lines (J3T-1 and J3T-2) with different invasive phenotypes. The J3T-1 showed abundant angiogenesis and tumor cell invasion around neovasculature, while J3T-2 showed diffuse cell infiltration into surrounding healthy parenchyma. Microarray analyses were used to identify invasion-related genes in J3T-2 cells, and the expressed genes and their intracellular and intratumoral distribution patterns were evaluated in J3T-2 cell lines, human glioma cell lines, human glioblastoma stem cells and human glioblastoma specimens. To determine the role of the invasion-related genes, invasive activities were evaluated in vitro and in vivo. Fibroblast growth factor 13 (FGF13) was overexpressed in J3T-2 cells compared to J3T-1 cells, and in human glioma cell lines, human glioblastoma stem cells and human glioblastoma specimens, when compared to that of normal human astrocytes. Immunohistochemical staining and the RNA-seq (sequencing) data from the IVY Glioblastoma Atlas Project showed FGF13 expression in glioma cells in the invasive edges of tumor specimens. Also, the intracellular distribution was mainly in the cytoplasm of tumor cells and colocalized with tubulin. Overexpression of FGF13 stabilized tubulin dynamics in vitro and knockdown of FGF13 decreased glioma invasion both in vitro and in vivo and prolonged overall survival of several xenograft models. FGF13 was negatively regulated by hypoxic condition. Silencing of FGF13 also decreased in vivo bevacizumab-induced glioma invasion. In conclusion, FGF13 regulated glioma cell invasion and bevacizumab-induced glioma invasion, and could be a novel target for glioma treatment.
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Affiliation(s)
- Y Otani
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - T Ichikawa
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - K Kurozumi
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - S Inoue
- Department of Neurosurgery, Okayama City Hospital, Okayama, Japan
| | - J Ishida
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - T Oka
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - T Shimizu
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Y Tomita
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Y Hattori
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - A Uneda
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Y Matsumoto
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - H Michiue
- Department of Physiology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - I Date
- Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
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23
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Sung W, Ye SJ, McNamara AL, McMahon SJ, Hainfeld J, Shin J, Smilowitz HM, Paganetti H, Schuemann J. Dependence of gold nanoparticle radiosensitization on cell geometry. NANOSCALE 2017; 9:5843-5853. [PMID: 28429022 PMCID: PMC5526329 DOI: 10.1039/c7nr01024a] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The radiosensitization effect of gold nanoparticles (GNPs) has been demonstrated both in vitro and in vivo in radiation therapy. The purpose of this study was to systematically assess the biological effectiveness of GNPs distributed in the extracellular media for realistic cell geometries. TOPAS-nBio simulations were used to determine the nanometre-scale radial dose distributions around the GNPs, which were subsequently used to predict the radiation dose response of cells surrounded by GNPs. MDA-MB-231 human breast cancer cells and F-98 rat glioma cells were used as models to assess different cell geometries by changing (1) the cell shape, (2) the nucleus location within the cell, (3) the size of GNPs, and (4) the photon energy. The results show that the sensitivity enhancement ratio (SER) was increased up to a factor of 1.2 when the location of the nucleus is close to the cell membrane for elliptical-shaped cells. Heat-maps of damage-likelihoods show that most of the lethal events occur in the regions of the nuclei closest to the membrane, potentially causing highly clustered damage patterns. The effect of the GNP size on radiosensitization was limited when the GNPs were located outside the cell. The improved modelling of the cell geometry was shown to be crucial because the dose enhancement caused by GNPs falls off rapidly with distance from the GNPs. We conclude that radiosensitization can be achieved for kV photons even without cellular uptake of GNPs when the nucleus is shifted towards the cell membrane. Furthermore, damage was found to concentrate in a small region of the nucleus in close proximity to the extracellular, GNP-laden region.
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Affiliation(s)
- Wonmo Sung
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Program in Biomedical Radiation Sciences, Department of Transdisciplinary Studies, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, South Korea
- Biomedical Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Sung-Joon Ye
- Program in Biomedical Radiation Sciences, Department of Transdisciplinary Studies, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, South Korea
- Biomedical Research Institute, Seoul National University College of Medicine, Seoul, South Korea
- Robotics Research Laboratory for Extreme Environment, Advanced Institutes of Convergence Technology, Seoul National University, Suwon, South Korea
- corresponding authors: .
| | - Aimee L. McNamara
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Stephen J McMahon
- Centre for Cancer Research and Cell Biology, Queen’s University Belfast, Belfast, UK
| | | | - Jungwook Shin
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | | | - Harald Paganetti
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Jan Schuemann
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
- corresponding authors: .
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24
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Yuan A, Rao MV, Veeranna, Nixon RA. Neurofilaments and Neurofilament Proteins in Health and Disease. Cold Spring Harb Perspect Biol 2017; 9:9/4/a018309. [PMID: 28373358 DOI: 10.1101/cshperspect.a018309] [Citation(s) in RCA: 431] [Impact Index Per Article: 61.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
SUMMARYNeurofilaments (NFs) are unique among tissue-specific classes of intermediate filaments (IFs) in being heteropolymers composed of four subunits (NF-L [neurofilament light]; NF-M [neurofilament middle]; NF-H [neurofilament heavy]; and α-internexin or peripherin), each having different domain structures and functions. Here, we review how NFs provide structural support for the highly asymmetric geometries of neurons and, especially, for the marked radial expansion of myelinated axons crucial for effective nerve conduction velocity. NFs in axons extensively cross-bridge and interconnect with other non-IF components of the cytoskeleton, including microtubules, actin filaments, and other fibrous cytoskeletal elements, to establish a regionally specialized network that undergoes exceptionally slow local turnover and serves as a docking platform to organize other organelles and proteins. We also discuss how a small pool of oligomeric and short filamentous precursors in the slow phase of axonal transport maintains this network. A complex pattern of phosphorylation and dephosphorylation events on each subunit modulates filament assembly, turnover, and organization within the axonal cytoskeleton. Multiple factors, and especially turnover rate, determine the size of the network, which can vary substantially along the axon. NF gene mutations cause several neuroaxonal disorders characterized by disrupted subunit assembly and NF aggregation. Additional NF alterations are associated with varied neuropsychiatric disorders. New evidence that subunits of NFs exist within postsynaptic terminal boutons and influence neurotransmission suggests how NF proteins might contribute to normal synaptic function and neuropsychiatric disease states.
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Affiliation(s)
- Aidong Yuan
- Center for Dementia Research, Nathan Kline Institute, Orangeburg, New York 10962.,Department of Psychiatry, New York University School of Medicine, New York, New York 10016
| | - Mala V Rao
- Center for Dementia Research, Nathan Kline Institute, Orangeburg, New York 10962.,Department of Psychiatry, New York University School of Medicine, New York, New York 10016
| | - Veeranna
- Center for Dementia Research, Nathan Kline Institute, Orangeburg, New York 10962.,Department of Psychiatry, New York University School of Medicine, New York, New York 10016
| | - Ralph A Nixon
- Center for Dementia Research, Nathan Kline Institute, Orangeburg, New York 10962.,Department of Psychiatry, New York University School of Medicine, New York, New York 10016.,Cell Biology, New York University School of Medicine, New York, New York 10016
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25
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Laurin Y, Eyer J, Robert CH, Prevost C, Sacquin-Mora S. Mobility and Core-Protein Binding Patterns of Disordered C-Terminal Tails in β-Tubulin Isotypes. Biochemistry 2017; 56:1746-1756. [PMID: 28290671 DOI: 10.1021/acs.biochem.6b00988] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Although they play a significant part in the regulation of microtubule structure, dynamics, and function, the disordered C-terminal tails of tubulin remain invisible to experimental structural methods and do not appear in the crystallographic structures that are currently available in the Protein Data Bank. Interestingly, these tails concentrate most of the sequence variability between tubulin isotypes and are the sites of the principal post-translational modifications undergone by this protein. Using homology modeling, we developed two complete models for the human αI/βI- and αI/βIII-tubulin isotypes that include their C-terminal tails. We then investigated the conformational variability of the two β-tails using long time-scale classical molecular dynamics simulations that revealed similar features, notably the unexpected presence of common anchoring regions on the surface of the tuulin dimer, but also distinctive mobility or interaction patterns, some of which could be related to the tail lengths and charge distributions. We also observed in our simulations that the C-terminal tail from the βI isotype, but not the βIII isotype, formed contacts in the putative binding site of a recently discovered peptide that disrupts microtubule formation in glioma cells. Hindering the binding site in the βI isotype would be consistent with this peptide's preferential disruption of microtubule formation in glioma, whose cells overexpress βIII, compared to normal glial cells. While these observations need to be confirmed with more intensive sampling, our study opens new perspectives for the development of isotype-specific chemotherapy drugs.
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Affiliation(s)
- Yoann Laurin
- Laboratoire de Biochimie Théorique, UPR 9080 CNRS, Institut de Biologie Physico-Chimique , 13 rue Pierre et Marie Curie, 75005 Paris, France
| | - Joel Eyer
- Laboratoire de Neurobiologie & Transgenèse, UPRES EA 3143, INSERM, Centre Hospitalier Universitaire , Angers, France
| | - Charles H Robert
- Laboratoire de Biochimie Théorique, UPR 9080 CNRS, Institut de Biologie Physico-Chimique , 13 rue Pierre et Marie Curie, 75005 Paris, France
| | - Chantal Prevost
- Laboratoire de Biochimie Théorique, UPR 9080 CNRS, Institut de Biologie Physico-Chimique , 13 rue Pierre et Marie Curie, 75005 Paris, France
| | - Sophie Sacquin-Mora
- Laboratoire de Biochimie Théorique, UPR 9080 CNRS, Institut de Biologie Physico-Chimique , 13 rue Pierre et Marie Curie, 75005 Paris, France
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Zheng J, Liu X, Xue Y, Gong W, Ma J, Xi Z, Que Z, Liu Y. TTBK2 circular RNA promotes glioma malignancy by regulating miR-217/HNF1β/Derlin-1 pathway. J Hematol Oncol 2017; 10:52. [PMID: 28219405 PMCID: PMC5319142 DOI: 10.1186/s13045-017-0422-2] [Citation(s) in RCA: 179] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 02/14/2017] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Circular RNAs are a subgroup of non-coding RNAs and generated by a mammalian genome. Herein, the expression and function of circular RNA circ-TTBK2 were investigated in human glioma cells. METHODS Fluorescence in situ hybridization and quantitative real-time PCR were conducted to profile the cell distribution and expression of circ-TTBK2 and microRNA-217 (miR-217) in glioma tissues and cells. Immunohistochemical and western blot were used to determine the expression of HNF1β and Derlin-1 in glioma tissues and cells. Stable knockdown of circ-TTBK2 or overexpression of miR-217 glioma cell lines (U87 and U251) were established to explore the function of circ-TTBK2 and miR-217 in glioma cells. Further, luciferase reports and RNA immunoprecipitation were used to investigate the correlation between circ-TTBK2 and miR-217. Cell Counting Kit-8, transwell assays, and flow cytometry were used to investigate circ-TTBK2 and miR-217 function including cell proliferation, migration and invasion, and apoptosis, respectively. ChIP assays were used to ascertain the correlations between HNF1β and Derlin-1. RESULTS We found that circ-TTBK2 was upregulated in glioma tissues and cell lines, while linear TTBK2 was not dysregulated in glioma tissues and cells. Enhanced expression of circ-TTBK2 promoted cell proliferation, migration, and invasion, while inhibited apoptosis. MiR-217 was downregulated in glioma tissues and cell lines. We also found that circ-TTBK2, but not linear TTBK2, acted as miR-217 sponge in a sequence-specific manner. In addition, upregulated circ-TTBK2 decreased miR-217 expression and there was a reciprocal negative feedback between them in an Argonaute2-dependent manner. Moreover, reintroduction of miR-217 significantly reversed circ-TTBK2-mediated promotion of glioma progression. HNF1β was a direct target of miR-217, and played oncogenic role in glioma cells. Remarkably, circ-TTBK2 knockdown combined with miR-217 overexpression led to tumor regression in vivo. CONCLUSIONS These results demonstrated a novel role circ-TTBK2 in the glioma progression.
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Affiliation(s)
- Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, 110004, People's Republic of China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, 110004, People's Republic of China
| | - Yixue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Wei Gong
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Jun Ma
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, 110122, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, 110122, People's Republic of China
| | - Zhuo Xi
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, 110004, People's Republic of China
| | - Zhongyou Que
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China.,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, 110004, People's Republic of China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, 110004, People's Republic of China. .,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, 110004, People's Republic of China.
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27
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NFL-lipid nanocapsules for brain neural stem cell targeting in vitro and in vivo. J Control Release 2016; 238:253-262. [DOI: 10.1016/j.jconrel.2016.08.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/02/2016] [Accepted: 08/04/2016] [Indexed: 12/15/2022]
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CRNDE affects the malignant biological characteristics of human glioma stem cells by negatively regulating miR-186. Oncotarget 2016; 6:25339-55. [PMID: 26231038 PMCID: PMC4694835 DOI: 10.18632/oncotarget.4509] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 07/02/2015] [Indexed: 01/18/2023] Open
Abstract
The long non-coding RNA Colorectal neoplasia differentially expressed (CRNDE) is a novel gene that activated early in colorectal neoplasia, but it is also up-regulated in many other solid tumors. Herein, the function and underlying mechanism of CRNDE in regulating glioma stem cells (GSCs) were investigated. We found that CRNDE expression was up-regulated while miR-186 expression was down-regulated in GSCs. Overexpression of CRNDE could promote the cellular proliferation, migration, invasion and inhibit the apoptosis in GSCs. Overexpression of miR-186 exerted functions of inhibiting the proliferation, migration and invasion of GSCs and promoting apoptosis. And CRNDE decreased the expression levels of XIAP and PAK7 by binding to miR-186 and negatively regulating it. In addition, miR-186 binded to XIAP and PAK7 3′UTR region, and decrease the expression of them, thus regulating the expression levels of downstream target proteins such as caspase 3, BAD, cyclin D1 and MARK2. The in vivo effect of CRNDE and miR-186 showed that the tumor formation rate was minimum in tumor-bearing nude mice with the knockdown of CRNDE and the overexpression of miR-186. In conclusion, CRNDE played an oncogenic role of GSCs through the negative regulation of miR-186. Both CRNDE and miR-186 could be regarded as potential targets in the glioma therapy.
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Sobierajska K, Wieczorek K, Ciszewski WM, Sacewicz-Hofman I, Wawro ME, Wiktorska M, Boncela J, Papiewska-Pajak I, Kwasniak P, Wyroba E, Cierniewski CS, Niewiarowska J. β-III tubulin modulates the behavior of Snail overexpressed during the epithelial-to-mesenchymal transition in colon cancer cells. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1863:2221-33. [PMID: 27188792 DOI: 10.1016/j.bbamcr.2016.05.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 04/22/2016] [Accepted: 05/11/2016] [Indexed: 12/17/2022]
Abstract
Class III β-tubulin (TUBB3) is a marker of drug resistance expressed in a variety of solid tumors. Originally, it was described as an important element of chemoresistance to taxanes. Recent studies have revealed that TUBB3 is also involved in an adaptive response to a microenvironmental stressor, e.g. low oxygen levels and poor nutrient supply in some solid tumors, independently of the microtubule targeting agent. Furthermore, it has been demonstrated that TUBB3 is a marker of biological aggressiveness associated with modulation of metastatic abilities in colon cancer. The epithelial-to-mesenchymal transition (EMT) is a basic cellular process by which epithelial cells lose their epithelial behavior and become invasive cells involved in cancer metastasis. Snail is a zinc-finger transcription factor which is able to induce EMT through the repression of E-cadherin expression. In the presented studies we focused on the analysis of the TUBB3 role in EMT-induced colon adenocarcinoma cell lines HT-29 and LS180. We observed a positive correlation between Snail presence and TUBB3 upregulation in tested adenocarcinoma cell lines. The cellular and behavioral analysis revealed for the first time that elevated TUBB3 level is functionally linked to increased cell migration and invasive capability of EMT induced cells. Additionally, the post-transcriptional modifications (phosphorylation, glycosylation) appear to regulate the cellular localization of TUBB3 and its phosphorylation, observed in cytoskeleton, is probably involved in cell motility modulation.
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Affiliation(s)
- Katarzyna Sobierajska
- Department of Molecular Cell Mechanisms, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| | - Katarzyna Wieczorek
- Department of Molecular Cell Mechanisms, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland,; Department of Endocrinology and Metabolic Diseases, Medical University of Lodz, Rzgowska 281/289, 93-338, Lodz, Poland
| | - Wojciech M Ciszewski
- Department of Molecular Cell Mechanisms, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| | - Izabela Sacewicz-Hofman
- Department of Molecular Cell Mechanisms, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| | - Marta E Wawro
- Department of Molecular Cell Mechanisms, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| | - Magdalena Wiktorska
- Department of Molecular Cell Mechanisms, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| | - Joanna Boncela
- Institute of Medical Biology, PAS, Lodowa 106, 93-232, Lodz, Poland
| | | | - Pawel Kwasniak
- Nencki Institute of Experimental Biology, PAS, Pasteura 3, 02-093, Warsaw, Poland, Institute of Medical Biology, PAS, Lodowa 106, 93-232, Lodz, Poland
| | - Elzbieta Wyroba
- Nencki Institute of Experimental Biology, PAS, Pasteura 3, 02-093, Warsaw, Poland, Institute of Medical Biology, PAS, Lodowa 106, 93-232, Lodz, Poland
| | - Czeslaw S Cierniewski
- Institute of Medical Biology, PAS, Lodowa 106, 93-232, Lodz, Poland; Department of Molecular and Medical Biophysics, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| | - Jolanta Niewiarowska
- Department of Molecular Cell Mechanisms, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland,.
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30
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Lépinoux-Chambaud C, Barreau K, Eyer J. The Neurofilament-Derived Peptide NFL-TBS.40-63 Targets Neural Stem Cells and Affects Their Properties. Stem Cells Transl Med 2016; 5:901-13. [PMID: 27177578 DOI: 10.5966/sctm.2015-0221] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 02/23/2016] [Indexed: 01/18/2023] Open
Abstract
UNLABELLED Targeting neural stem cells (NSCs) in the adult brain represents a promising approach for developing new regenerative strategies, because these cells can proliferate, self-renew, and differentiate into new neurons, astrocytes, and oligodendrocytes. Previous work showed that the NFL-TBS.40-63 peptide, corresponding to the sequence of a tubulin-binding site on neurofilaments, can target glioblastoma cells, where it disrupts their microtubules and inhibits their proliferation. We show that this peptide targets NSCs in vitro and in vivo when injected into the cerebrospinal fluid. Although neurosphere formation was not altered by the peptide, the NSC self-renewal capacity and proliferation were reduced and were associated with increased adhesion and differentiation. These results indicate that the NFL-TBS.40-63 peptide represents a new molecular tool to target NSCs to develop new strategies for regenerative medicine and the treatment of brain tumors. SIGNIFICANCE In the present study, the NFL-TBS.40-63 peptide targeted neural stem cells in vitro when isolated from the subventricular zone and in vivo when injected into the cerebrospinal fluid present in the lateral ventricle. The in vitro formation of neurospheres was not altered by the peptide; however, at a high concentration of the peptide, the neural stem cell (NSC) self-renewal capacity and proliferation were reduced and associated with increased adhesion and differentiation. These results indicate that the NFL-TBS.40-63 peptide represents a new molecular tool to target NSCs to develop new strategies for regenerative medicine and the treatment of brain tumors.
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Affiliation(s)
- Claire Lépinoux-Chambaud
- Laboratoire Neurobiologie et Transgenese, Université Nantes, Angers, Le Mans, Unité Propre de Recherche de l'Enseignement Supérieur EA-3143, Institut de Biologie en Santé, L'Université d'Angers, Centre Hospitalier Universitaire, Angers, France
| | - Kristell Barreau
- Laboratoire Neurobiologie et Transgenese, Université Nantes, Angers, Le Mans, Unité Propre de Recherche de l'Enseignement Supérieur EA-3143, Institut de Biologie en Santé, L'Université d'Angers, Centre Hospitalier Universitaire, Angers, France
| | - Joël Eyer
- Laboratoire Neurobiologie et Transgenese, Université Nantes, Angers, Le Mans, Unité Propre de Recherche de l'Enseignement Supérieur EA-3143, Institut de Biologie en Santé, L'Université d'Angers, Centre Hospitalier Universitaire, Angers, France
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31
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Hsu TI, Chen YJ, Hung CY, Wang YC, Lin SJ, Su WC, Lai MD, Kim SY, Wang Q, Qian K, Goto M, Zhao Y, Kashiwada Y, Lee KH, Chang WC, Hung JJ. A novel derivative of betulinic acid, SYK023, suppresses lung cancer growth and malignancy. Oncotarget 2016; 6:13671-87. [PMID: 25909174 PMCID: PMC4537041 DOI: 10.18632/oncotarget.3701] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 03/02/2015] [Indexed: 12/25/2022] Open
Abstract
Herein, we evaluated the anti-cancer effect and molecular mechanisms of a novel betulinic acid (BA) derivative, SYK023, by using two mouse models of lung cancer driven by KrasG12D or EGFRL858R. We found that SYK023 inhibits lung tumor proliferation, without side effects in vivo or cytotoxicity in primary lung cells in vitro. SYK023 triggered endoplasmic reticulum (ER) stress. Blockage of ER stress in SYK023-treated cells inhibited SYK023-induced apoptosis. In addition, we found that the expression of cell cycle-related genes, including cyclin A2, B1, D3, CDC25a, and CDC25b decreased but, while those of p15INK4b, p16INK4a, and p21CIP1 increased following SYK023 treatment. Finally, low doses of SYK023 significantly decreased lung cancer metastasis in vitro and in vivo. Expression of several genes related to cell migration, including synaptopodin, were downregulated by SYK023, thereby impairing F-actin polymerization and metastasis. Therefore, SYK023 may be a potentially therapeutic treatment for metastatic lung cancer.
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Affiliation(s)
- Tsung-I Hsu
- Center for Infection Disease and Signal Research, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Institute of Bioinformatics and Biosignal Transduction, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Ying-Jung Chen
- Institute of Bioinformatics and Biosignal Transduction, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Chia-Yang Hung
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Chang Wang
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Sin-Jin Lin
- Institute of Bioinformatics and Biosignal Transduction, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Wu-Chou Su
- Department of Internal Medicine, College of Medicine and Hospital, National Cheng Kung University, Tainan, Taiwan
| | - Ming-Derg Lai
- Center for Infection Disease and Signal Research, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Sang-Yong Kim
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - Qiang Wang
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - Keduo Qian
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - Masuo Goto
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - Yu Zhao
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA
| | - Yoshiki Kashiwada
- Laboratory of Pharmacognosy, Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima, Japan
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, NC, USA.,Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan
| | - Wen-Chang Chang
- Center for Infection Disease and Signal Research, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Institute of Bioinformatics and Biosignal Transduction, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan.,Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jan-Jong Hung
- Center for Infection Disease and Signal Research, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Institute of Bioinformatics and Biosignal Transduction, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan.,Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
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Zheng J, Liu X, Wang P, Xue Y, Ma J, Qu C, Liu Y. CRNDE Promotes Malignant Progression of Glioma by Attenuating miR-384/PIWIL4/STAT3 Axis. Mol Ther 2016; 24:1199-1215. [PMID: 27058823 DOI: 10.1038/mt.2016.71] [Citation(s) in RCA: 172] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 04/01/2016] [Indexed: 12/16/2022] Open
Abstract
Colorectal neoplasia differentially expressed (CRNDE) is the most upregulated long noncoding RNA (lncRNA) in glioma. Herein, the function and potential molecular mechanisms of CRNDE and miR-384 were illustrated in glioma cells. CRNDE overexpression facilitated cell proliferation, migration, and invasion, while inhibited glioma cells apoptosis. Quantitative real-time polymerase chain reaction (PCR) demonstrated that miR-384 was downregulated in human glioma tissues and glioma cell lines. Moreover, restoration of miR-384 exerted tumor-suppressive functions. In addition, the expression of miR-384 was negatively correlated with CRNDE expression. A binding region between CRNDE and miR-384 was confirmed using luciferase assays. Moreover, CRNDE promoted cell malignant behavior by decreasing miR-384 expression. At the molecular level, treatment by CRNDE knockdown or miR-384 overexpression resulted in a decrease of piwi-like RNA-mediated gene silencing 4 (PIWIL4) protein. Besides, PIWIL4 was identified as a target of miR-384 and plays an oncogenic role in glioma. Similarly, downstream proteins of PIWIL4 such as STAT3, cyclin D1, VEGFA, SLUG, MMP-9, caspase 3, Bcl-2, and bcl-xL were modulated when treated with miR-384 and PIWIL4. Remarkably, CRNDE knockdown combined with miR-384 overexpression led to tumor regression in vivo. Overall, these results depicted a novel pathway mediated by CRNDE in glioma, which may be a potential application for glioma therapy.
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Affiliation(s)
- Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China.,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, People's Republic of China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China.,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, People's Republic of China
| | - Ping Wang
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, People's Republic of China.,Institute of Pathology and Pathophysiology, China Medical University, Shenyang, People's Republic of China
| | - Yixue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, People's Republic of China.,Institute of Pathology and Pathophysiology, China Medical University, Shenyang, People's Republic of China
| | - Jun Ma
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, People's Republic of China.,Institute of Pathology and Pathophysiology, China Medical University, Shenyang, People's Republic of China
| | - Chengbin Qu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China.,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, People's Republic of China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China.,Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang, People's Republic of China
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Berges R, Baeza-Kallee N, Tabouret E, Chinot O, Petit M, Kruczynski A, Figarella-Branger D, Honore S, Braguer D. End-binding 1 protein overexpression correlates with glioblastoma progression and sensitizes to Vinca-alkaloids in vitro and in vivo. Oncotarget 2015; 5:12769-87. [PMID: 25473893 PMCID: PMC4350359 DOI: 10.18632/oncotarget.2646] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 10/26/2014] [Indexed: 01/08/2023] Open
Abstract
End-binding 1 protein (EB1) is a key player in the regulation of microtubule (MT) dynamics. Here, we investigated the role of EB1 in glioblastoma (GBM) tumor progression and its potential predictive role for response to Vinca-alkaloid chemotherapy. Immunohistological analysis of the 109 human GBM cases revealed that EB1 overexpression correlated with poor outcome including progression-free survival and overall survival. Downregulation of EB1 by shRNA inhibited cell migration and proliferation in vitro. Conversely, EB1 overexpression promoted them and accelerated tumor growth in orthotopically-transplanted nude mice. Furthermore, EB1 was largely overexpressed in stem-like GBM6 that display in vivo a higher tumorigenicity with a more infiltrative pattern of migration than stem-like GBM9. GBM6 showed strong and EB1-dependent migratory potential. The predictive role of EB1 in the response of GBM cells to chemotherapy was investigated. Vinflunine and vincristine increased survival of EB1-overexpressing U87 bearing mice and were more effective to inhibit cell migration and proliferation in EB1-overexpressing clones than in controls. Vinca inhibited the increase of MT growth rate and growth length induced by EB1 overexpression. Altogether, our results show that EB1 expression level has a prognostic value in GBM, and that Vinca-alkaloid chemotherapy could improve the treatment of GBM patients with EB1-overexpressing tumor.
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Affiliation(s)
- Raphael Berges
- Aix-Marseille Université, INSERM, CRO2 UMR_S 911, Marseille 13385, France
| | | | - Emeline Tabouret
- Aix-Marseille Université, INSERM, CRO2 UMR_S 911, Marseille 13385, France. APHM, CHU Timone, Marseille 13385, France
| | - Olivier Chinot
- Aix-Marseille Université, INSERM, CRO2 UMR_S 911, Marseille 13385, France. APHM, CHU Timone, Marseille 13385, France
| | - Marie Petit
- Aix-Marseille Université, INSERM, CRO2 UMR_S 911, Marseille 13385, France. APHM, CHU Timone, Marseille 13385, France
| | - Anna Kruczynski
- Centre de Recherche d'Oncologie Expérimentale, Institut de Recherche Pierre Fabre, Toulouse, France
| | - Dominique Figarella-Branger
- Aix-Marseille Université, INSERM, CRO2 UMR_S 911, Marseille 13385, France. APHM, CHU Timone, Marseille 13385, France
| | - Stephane Honore
- Aix-Marseille Université, INSERM, CRO2 UMR_S 911, Marseille 13385, France. APHM, CHU Timone, Marseille 13385, France
| | - Diane Braguer
- Aix-Marseille Université, INSERM, CRO2 UMR_S 911, Marseille 13385, France. APHM, CHU Timone, Marseille 13385, France
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A novel microtubule de-stabilizing complementarity-determining region C36L1 peptide displays antitumor activity against melanoma in vitro and in vivo. Sci Rep 2015; 5:14310. [PMID: 26391685 PMCID: PMC4585759 DOI: 10.1038/srep14310] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 08/24/2015] [Indexed: 12/22/2022] Open
Abstract
Short peptide sequences from complementarity-determining regions (CDRs) of different immunoglobulins may exert anti-infective, immunomodulatory and antitumor activities regardless of the specificity of the original monoclonal antibody (mAb). In this sense, they resemble early molecules of innate immunity. C36L1 was identified as a bioactive light-chain CDR1 peptide by screening 19 conserved CDR sequences targeting murine B16F10-Nex2 melanoma. The 17-amino acid peptide is readily taken up by melanoma cells and acts on microtubules causing depolymerization, stress of the endoplasmic reticulum and intrinsic apoptosis. At low concentrations, C36L1 inhibited migration, invasion and proliferation of B16F10-Nex2 cells with cell cycle arrest at G2/M phase, by regulating the PI3K/Akt signaling axis involving Rho-GTPase and PTEN mediation. Peritumor injection of the peptide delayed growth of subcutaneously grafted melanoma cells. Intraperitoneal administration of C36L1 induced a significant immune-response dependent anti-tumor protection in a syngeneic metastatic melanoma model. Dendritic cells stimulated ex-vivo by the peptide and transferred to animals challenged with tumor cells were equally effective. The C36 VL CDR1 peptide is a promising microtubule-interacting drug that induces tumor cell death by apoptosis and inhibits metastases of highly aggressive melanoma cells.
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35
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Fressinaud C, Eyer J. Neurofilaments and NFL-TBS.40–63 peptide penetrate oligodendrocytes through clathrin-dependent endocytosis to promote their growth and survival in vitro. Neuroscience 2015; 298:42-51. [DOI: 10.1016/j.neuroscience.2015.04.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 03/05/2015] [Accepted: 04/02/2015] [Indexed: 12/13/2022]
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Laurin Y, Savarin P, Robert CH, Takahashi M, Eyer J, Prevost C, Sacquin-Mora S. Investigating the Structural Variability and Binding Modes of the Glioma Targeting NFL-TBS.40–63 Peptide on Tubulin. Biochemistry 2015; 54:3660-9. [DOI: 10.1021/acs.biochem.5b00146] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yoann Laurin
- Laboratoire
de Biochimie Théorique, UPR 9080 CNRS Institut de Biologie Physico-Chimique,13 rue Pierre et Marie Curie, 75005 Paris, France
| | - Philippe Savarin
- Université
Paris 13, Sorbonne Paris Cité, CSPBAT, UMR 7244 CNRS, 74 rue Marcel Cachin, 93017 Bobigny, France
| | - Charles H. Robert
- Laboratoire
de Biochimie Théorique, UPR 9080 CNRS Institut de Biologie Physico-Chimique,13 rue Pierre et Marie Curie, 75005 Paris, France
| | - Masayuki Takahashi
- School
of Bioscience and Biotechnology, Tokyo Institue of Technology 2-12-1-M6-14
Ookayama, Meguro-ku, Tokyo 152-8550 Japan
| | - Joel Eyer
- Laboratoire de Neurobiologie & Transgenèse, UPRES EA 3143, INSERM, Centre Hospitalier Universitaire, Angers, France
| | - Chantal Prevost
- Laboratoire
de Biochimie Théorique, UPR 9080 CNRS Institut de Biologie Physico-Chimique,13 rue Pierre et Marie Curie, 75005 Paris, France
| | - Sophie Sacquin-Mora
- Laboratoire
de Biochimie Théorique, UPR 9080 CNRS Institut de Biologie Physico-Chimique,13 rue Pierre et Marie Curie, 75005 Paris, France
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A Heparan Sulfate-Binding Cell Penetrating Peptide for Tumor Targeting and Migration Inhibition. BIOMED RESEARCH INTERNATIONAL 2015; 2015:237969. [PMID: 26064887 PMCID: PMC4433633 DOI: 10.1155/2015/237969] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 10/31/2014] [Accepted: 11/14/2014] [Indexed: 11/18/2022]
Abstract
As heparan sulfate proteoglycans (HSPGs) are known as co-receptors to interact with numerous growth factors and then modulate downstream biological activities, overexpression of HS/HSPG on cell surface acts as an increasingly reliable prognostic factor in tumor progression. Cell penetrating peptides (CPPs) are short-chain peptides developed as functionalized vectors for delivery approaches of impermeable agents. On cell surface negatively charged HS provides the initial attachment of basic CPPs by electrostatic interaction, leading to multiple cellular effects. Here a functional peptide (CPPecp) has been identified from critical HS binding region in hRNase3, a unique RNase family member with in vitro antitumor activity. In this study we analyze a set of HS-binding CPPs derived from natural proteins including CPPecp. In addition to cellular binding and internalization, CPPecp demonstrated multiple functions including strong binding activity to tumor cell surface with higher HS expression, significant inhibitory effects on cancer cell migration, and suppression of angiogenesis in vitro and in vivo. Moreover, different from conventional highly basic CPPs, CPPecp facilitated magnetic nanoparticle to selectively target tumor site in vivo. Therefore, CPPecp could engage its capacity to be developed as biomaterials for diagnostic imaging agent, therapeutic supplement, or functionalized vector for drug delivery.
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Katsetos CD, Reginato MJ, Baas PW, D'Agostino L, Legido A, Tuszyn Ski JA, Dráberová E, Dráber P. Emerging microtubule targets in glioma therapy. Semin Pediatr Neurol 2015; 22:49-72. [PMID: 25976261 DOI: 10.1016/j.spen.2015.03.009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Major advances in the genomics and epigenomics of diffuse gliomas and glioblastoma to date have not been translated into effective therapy, necessitating pursuit of alternative treatment approaches for these therapeutically challenging tumors. Current knowledge of microtubules in cancer and the development of new microtubule-based treatment strategies for high-grade gliomas are the topic in this review article. Discussed are cellular, molecular, and pharmacologic aspects of the microtubule cytoskeleton underlying mitosis and interactions with other cellular partners involved in cell cycle progression, directional cell migration, and tumor invasion. Special focus is placed on (1) the aberrant overexpression of βIII-tubulin, a survival factor associated with hypoxic tumor microenvironment and dynamic instability of microtubules; (2) the ectopic overexpression of γ-tubulin, which in addition to its conventional role as a microtubule-nucleating protein has recently emerged as a transcription factor interacting with oncogenes and kinases; (3) the microtubule-severing ATPase spastin and its emerging role in cell motility of glioblastoma cells; and (4) the modulating role of posttranslational modifications of tubulin in the context of interaction of microtubules with motor proteins. Specific antineoplastic strategies discussed include downregulation of targeted molecules aimed at achieving a sensitization effect on currently used mainstay therapies. The potential role of new classes of tubulin-binding agents and ATPase inhibitors is also examined. Understanding the cellular and molecular mechanisms underpinning the distinct behaviors of microtubules in glioma tumorigenesis and drug resistance is key to the discovery of novel molecular targets that will fundamentally change the prognostic outlook of patients with diffuse high-grade gliomas.
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Affiliation(s)
- Christos D Katsetos
- Department of Pediatrics, Drexel University College of Medicine, Section of Neurology and Pediatric Neuro-oncology Program, St Christopher's Hospital for Children, Philadelphia, PA; Department of Pathology and Laboratory Medicine, Drexel University College of Medicine, Philadelphia, PA.
| | - Mauricio J Reginato
- Department of Biochemistry and Molecular Biology, Drexel University College of Medicine, Philadelphia, PA
| | - Peter W Baas
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA
| | - Luca D'Agostino
- Department of Pediatrics, Drexel University College of Medicine, Section of Neurology and Pediatric Neuro-oncology Program, St Christopher's Hospital for Children, Philadelphia, PA
| | - Agustin Legido
- Department of Pediatrics, Drexel University College of Medicine, Section of Neurology and Pediatric Neuro-oncology Program, St Christopher's Hospital for Children, Philadelphia, PA
| | - Jack A Tuszyn Ski
- Department of Oncology, University of Alberta, Cross Cancer Institute, Edmonton, Alberta, Canada; Department of Physics, University of Alberta, Edmonton, Alberta, Canada
| | - Eduarda Dráberová
- Department of Biology of Cytoskeleton, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Pavel Dráber
- Department of Biology of Cytoskeleton, Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
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Rivalin R, Lepinoux-Chambaud C, Eyer J, Savagner F. The NFL-TBS.40-63 anti-glioblastoma peptide disrupts microtubule and mitochondrial networks in the T98G glioma cell line. PLoS One 2014; 9:e98473. [PMID: 24896268 PMCID: PMC4045719 DOI: 10.1371/journal.pone.0098473] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 05/02/2014] [Indexed: 11/18/2022] Open
Abstract
Despite aggressive therapies, including combinations of surgery, radiotherapy and chemotherapy, glioblastoma remains a highly aggressive brain cancer with the worst prognosis of any central nervous system disease. We have previously identified a neurofilament-derived cell-penetrating peptide, NFL-TBS.40-63, that specifically enters by endocytosis in glioblastoma cells, where it induces microtubule destruction and inhibits cell proliferation. Here, we explore the impact of NFL-TBS.40-63 peptide on the mitochondrial network and its functions by using global cell respiration, quantitative PCR analysis of the main actors directing mitochondrial biogenesis, western blot analysis of the oxidative phosphorylation (OXPHOS) subunits and confocal microscopy. We show that the internalized peptide disturbs mitochondrial and microtubule networks, interferes with mitochondrial dynamics and induces a rapid depletion of global cell respiration. This effect may be related to reduced expression of the NRF-1 transcription factor and of specific miRNAs, which may impact mitochondrial biogenesis, in regard to default mitochondrial mobility.
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Affiliation(s)
- Romain Rivalin
- Université d'Angers, Angers, France
- Laboratoire Neurobiologie & Transgenese, LNBT, UPRES EA-3143, Université d'Angers, Bâtiment IBS-IRIS, Angers, France
| | - Claire Lepinoux-Chambaud
- Université d'Angers, Angers, France
- Laboratoire Neurobiologie & Transgenese, LNBT, UPRES EA-3143, Université d'Angers, Bâtiment IBS-IRIS, Angers, France
| | - Joël Eyer
- Université d'Angers, Angers, France
- Laboratoire Neurobiologie & Transgenese, LNBT, UPRES EA-3143, Université d'Angers, Bâtiment IBS-IRIS, Angers, France
| | - Frédérique Savagner
- Université d'Angers, Angers, France
- Laboratoire Neurobiologie & Transgenese, LNBT, UPRES EA-3143, Université d'Angers, Bâtiment IBS-IRIS, Angers, France
- CHU Angers, Laboratoire de Biochimie, Angers, France
- * E-mail:
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40
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Fressinaud C, Eyer J. Neurofilament-tubulin binding site peptide NFL-TBS.40-63 increases the differentiation of oligodendrocytes in vitro and partially prevents them from lysophosphatidyl choline toxiciy. J Neurosci Res 2013; 92:243-53. [PMID: 24327347 DOI: 10.1002/jnr.23308] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 08/30/2013] [Accepted: 09/06/2013] [Indexed: 01/05/2023]
Abstract
During multiple sclerosis (MS), the main axon cystoskeleton proteins, neurofilaments (NF), are altered, and their release into the cerebrospinal fluid correlates with disease severity. The role of NF in the extraaxonal location is unknown. Therefore, we tested whether synthetic peptides corresponding to the tubulin-binding site (TBS) sequence identified on light NF chain (NFL-TBS.40-63) and keratin (KER-TBS.1-24), which could be released during MS, modulate remyelination in vitro. Biotinylated NFL-TBS.40-63, NFL-Scramble2, and KER-TBS.1-54 (1-100 μM, 24 hr) were added to rat oligodendrocyte (OL) and astrocyte (AS) cultures, grown in chemically defined medium. Proliferation and differentiation were characterized by using specific antibodies (A2B5, CNP, MBP, GFAP) and compared with untreated cultures. Lysophosphatidyl choline (LPC; 2 × 10(-5) M) was used to induce OL death and to test the effects of TBS peptides under these conditions. NFL-TBS.40-63 significantly increased OL differentiation and maturation, with more CNP(+) and MBP(+) cells characterized by numerous ramified processes, along with myelin balls. When OL were challenged with LPC, concomitant treatment with NFL-TBS.40-63 rescued more than 50% of OL compared with cultures treated with LPC only. Proliferation of OL progenitors was not affected, nor were AS proliferation and differentiation. NFL-TBS.40-63 peptide induces specific effects in vitro, increasing OL differentiation and maturation without altering AS fate. In addition, it partially protects OL from demyelinating injury. Thus release of NFL-TBS.40-63 caused by axonal damage in vivo could improve repair through increased OL differentiation, which is a prerequisite for remyelination.
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Affiliation(s)
- Catherine Fressinaud
- LUNAM, Neurology Department, University Hospital, Angers, France; LUNAM, Neurobiology and Transgenesis Laboratory, UPRES EA 3143, University Hospital, Angers, France
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41
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Lépinoux-Chambaud C, Eyer J. The NFL-TBS.40-63 anti-glioblastoma peptide enters selectively in glioma cells by endocytosis. Int J Pharm 2013; 454:738-47. [PMID: 23603097 DOI: 10.1016/j.ijpharm.2013.04.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 03/29/2013] [Accepted: 04/02/2013] [Indexed: 12/12/2022]
Abstract
Glioblastoma are the most frequent and aggressive tumour of the nervous system despite surgical resection associated with chemotherapy and radiotherapy. Recently, we showed that the NFL-TBS.40-63 peptide corresponding to the sequence of a tubulin-binding site of neurofilaments, enters selectively in glioblastoma cells where it blocks microtubule polymerization, inhibits their proliferation, and reduces tumour development in rats bearing glioblastoma (Bocquet et al., 2009; Berges et al., 2012a). Here, we characterized the molecular mechanism responsible for the uptake of NFL-TBS.40-63 peptide by glioblastoma cells. Unlike other cell penetrating peptides (CPPs), which use a balance between endocytosis and direct translocation, the NFL-TBS.40-63 peptide is unable to translocate directly through the membrane when incubated with giant plasma membrane vesicles. Then, using a panel of markers and inhibitors, flow cytometry and confocal microscopy investigations showed that the uptake occurs mainly through endocytosis. Moreover, glycosaminoglycans and αVβ3 integrins are not involved in the NFL-TBS.40-63 peptide recognition and internalization by glioblastoma cells. Finally, the signalling of tyrosine kinase receptors is involved in the peptide uptake, especially via EGFR overexpressed in tumour cells, indicating that the uptake of NFL-TBS.40-63 peptide by glioblastoma cells is related to their abnormally high proliferative activity.
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Affiliation(s)
- Claire Lépinoux-Chambaud
- Laboratoire Neurobiologie & Transgenese, LUNAM, UPRES EA-3143, Université d'Angers, Centre Hospitalier Universitaire, Bâtiment IBS-IRIS, 49033 Angers, France
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42
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Balzeau J, Pinier M, Berges R, Saulnier P, Benoit JP, Eyer J. The effect of functionalizing lipid nanocapsules with NFL-TBS.40-63 peptide on their uptake by glioblastoma cells. Biomaterials 2013; 34:3381-9. [DOI: 10.1016/j.biomaterials.2013.01.068] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 01/15/2013] [Indexed: 10/27/2022]
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Berges R, Balzeau J, Takahashi M, Prevost C, Eyer J. Structure-function analysis of the glioma targeting NFL-TBS.40-63 peptide corresponding to the tubulin-binding site on the light neurofilament subunit. PLoS One 2012; 7:e49436. [PMID: 23152907 PMCID: PMC3494675 DOI: 10.1371/journal.pone.0049436] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Accepted: 10/08/2012] [Indexed: 11/23/2022] Open
Abstract
We previously reported that a 24 amino acid peptide (NFL-TBS.40-63) corresponding to the tubulin-binding site located on the light neurofilament subunit, selectively enters in glioblastoma cells where it disrupts their microtubule network and inhibits their proliferation. Here, we analyzed the structure-function relationships using an alanine-scanning strategy, in order to identify residues essential for these biological activities. We showed that the majority of modified peptides present a decreased or total loss to penetrate in these cells, or to alter microtubules. Correspondingly, circular dichroism measurements showed that this peptide forms either β-sheet or α-helix structures according to the solvent and that alanine substitution modified or destabilized the structure, in relation with changes in the biological activities. Moreover, substitution of serine residues by phosphoserine or aspartic acid concomitantly decreased the cell penetrating activity and the structure stability. These results indicate the importance of structure for the activities, including selectivity to glioblastoma cells of this peptide, and its regulation by phosphorylation.
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Affiliation(s)
| | | | | | | | - Joel Eyer
- Laboratoire de Neurobiologie & Transgenèse, UPRES EA 3143, INSERM, Centre Hospitalier Universitaire, Angers, France
- * E-mail:
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